colorist

US /ˈkʌl.ər.ɪst/
UK /ˈkʌl.ər.ɪst/
"colorist" picture
1.

a person who colors hair as a profession

:
She visited a professional colorist to get her hair dyed blonde.
The salon has several experienced colorists on staff.
2.

an artist who uses color in a distinctive or skillful way

:
The painter was known as a brilliant colorist, mastering vibrant hues.
Her work as a comic book colorist brought the illustrations to life.